Water Line Leak Between the Meter and the House: Who Pays in Baltimore?
In Baltimore City, the Department of Public Works maintains outdoor water lines up to and including the meter, and the property owner is responsible for the service line from the meter into the house. This guide shows how to tell which side a leak is on using DPW’s own meter test, who to call for each side, what homeowners insurance usually leaves out, and what a service line repair typically costs.
Water bubbling in the street? That side is the utility’s: call 311.
Which side is the leak on?
- Leak in the street, hydrant or meter vault: call 311.
- Leak between the meter and your foundation: call a plumber.
- Leak inside the house: call a plumber.
- High bill with no visible leak: run DPW’s meter test.
Step 1 of 4
Look for round-the-clock water use first
Baltimore City DPW tells customers with a high bill to check their daily use in its Customer Self-Service Portal at waterbillportal.baltimorecity.gov; when DPW launched the portal it noted that use continuing around the clock can point to a broken service line. Without portal access, use EPA WaterSense’s test: read the meter before and after a two-hour stretch with no water running, and any change means a leak.
Step 2 of 4
Close the main valve inside your home
DPW’s leak test starts by shutting off the valve on the main water line where it comes into the home, so every fixture and appliance inside stops drawing water. Where that valve sits in Baltimore homes walks through gate and ball valves.
Step 3 of 4
Watch whether the meter still registers use
If the meter keeps registering water use with the main valve closed, water is escaping between the meter and the house. DPW says that result points to an underground leak on your property, which is the owner’s to repair.
Leave the meter vault itself alone: in Baltimore City the meter and its valves are City equipment, and City Code § 21-6 bars tampering with them without DPW permission.
Step 4 of 4
Call the right party for the side that leaks
- Public side: report water main breaks, leaking hydrants and exterior leaks to Baltimore City 311. DPW lists 443-263-2220 for water emergencies in its Baltimore County service area.
- Private side: a leak on the service line between the meter and your foundation, or anywhere inside, needs a plumber.
Who owns each part of the water line in Baltimore?
DPW maintains the water main and the outdoor line up to and including the meter; the property owner is responsible for the line from the meter to the house and all indoor plumbing. DPW’s rules put the dividing point at the meter vault, or at the property line where no vault exists.
City rules install meters and meter vaults at the curb line nearest the water main unless DPW decides otherwise. Baltimore City DPW and Baltimore County’s public works department also state that part of every residential service line in the regional system is privately owned.
Baltimore County homes are billed by Baltimore City, which owns and runs the regional water system; County billing and meter questions go to 410-396-5398, and the County’s first online portal is scheduled for fall 2026.
Can you get a leak credit on your Baltimore water bill?
Yes, once the leak is repaired and you apply within 60 days of the bill. DPW removes all the extra water from an underground leak, and recalculates the sewer charge to match, but only 50% of the extra water from an interior leak such as a running toilet.
| Rule | Underground service line leak | Interior leak (toilet, fixture, appliance) |
|---|---|---|
| Extra water removed | All of it; sewer charge recalculated | 50% (the DPW example shows 100% for senior or hardship customers) |
| Proof required | Licensed plumber’s receipt with the repair date and type of repair | Confirmation that repairs are complete |
| Deadline | Request within 60 days of the bill; the owner or an authorized person applies | |
| How often | Limits apply: DPW’s adjustment page says once every two years for underground leaks and every three years for interior leaks, while its online form says one of each per 12 months | |
| When the credit shows | About 4 weeks after DPW receives the form | |
For a bill review, call DPW Customer Support at 410-396-5398 or email dpw.billing@baltimorecity.gov. Disputes that stall can go to the City’s independent Office of Water Advocacy & Customer Appeals at (443) 984-WACA; City Code gives customers 90 days after a disputed billing decision to ask for its help and bars requiring payment to anyone, including a plumber, before an appeal is heard.
Does homeowners insurance cover the line from the meter to the house?
Usually not. Baltimore City DPW states that homeowners insurance plans do not typically cover repairs to exterior, underground lines, and that the customer is responsible for all maintenance costs of the water service pipe on their property.
Water damage inside the house from a sudden break is a different question; standard homeowners policies cover sudden and accidental discharge, as the burst pipe first steps explain.
What a water service line repair costs
A leak on the main water line typically costs $354 to $1,696 to repair, and a full line replacement $647 to $2,833, according to HomeAdvisor (Jun 2026). Permits and landscaping restoration after excavation are extra.
| Repair or charge | Typical cost | What the range covers | Reported by |
|---|---|---|---|
| Main water line leak repair | $354 to $1,696 | Repairing a leak in the main water service line on the property, depending on leak size and pipe material. Permits ($150 to $500) and landscaping restoration after excavation are extra. | HomeAdvisor (Jun 2026) US national |
| Main water line replacement | $647 to $2,833 | Replacing the main water service line to the house; depends on location, line length and access. Permits and inspections ($150 to $500 each in many cities) are extra. | HomeAdvisor (Jun 2026) US national |
| Main water line replacement (per foot) | $50 to $150 per foot | Per-foot price for replacing a main water line; the source says high-cost urban areas or deep lines can reach $250 per foot. | HomeAdvisor (Jun 2026) US national |
Market ranges, not quotes from Speedy Plumbing Baltimore. Sources: HomeAdvisor: How Much Does Main Water Line Leak Repair Cost in 2025? (updated Jun 2026); HomeAdvisor: How Much Does Main Water Line Replacement Cost in 2026? (updated Jun 2026). Retrieved 2026-09-13.
HomeAdvisor adds that lines in high-cost urban areas, or buried deep, can reach $250 per foot, and Fixr’s main water line installation guide runs higher overall, at $1,500 to $12,000. Speedy Plumbing Baltimore prices your repair upfront after locating the leak.
Check the line’s material while it’s exposed
A service line dug up for a leak is the easiest moment to confirm what it is made of. Baltimore City DPW announced in September 2025 that it would mail service line inventory letters and asks owners of unknown lines to report the material; what those letters mean and how to test the pipe covers the key-and-magnet check.
Water line leak questions
Who is responsible for the water line from the meter to the house in Baltimore City?
The property owner. Baltimore City DPW maintains outdoor water lines up to and including the meter, and the line running from the meter to the house, plus all indoor plumbing, is the owner’s responsibility.
How do I know if I have an underground water leak?
Close the main water valve inside your home and watch the meter. Baltimore City DPW says that if the meter still registers use with the main valve closed, there might be an underground leak on your property.
Can I get money back on my water bill after fixing a leak in Baltimore City?
Yes, within limits. Apply to DPW within 60 days of the bill. An underground leak repaired by a licensed plumber gets all extra water removed; an interior leak gets 50% removed. Credits appear about 4 weeks later.
Who do I call about water bubbling up from the street?
Call Baltimore City 311 to report water main breaks, leaking hydrants or exterior leaks. DPW lists 443-263-2220 for water emergencies in its Baltimore County service area.
Get the private-side leak fixed
Once the meter test points to your side of the line, the leak needs locating and the damaged section replaced. Speedy Plumbing Baltimore handles service line leaks around the clock; see our water line and burst pipe repair service in Baltimore page.
Sources
Checked 2026-09-13. Plumbing and safety guidance changes; follow your utility’s and insurer’s current instructions.
- Baltimore City DPW: Cold Weather Tips (service line responsibility, Jan 2026)
- Baltimore City DPW: Water Bill Review Process
- Baltimore City DPW: Protecting Your Water Service
- Baltimore City DPW: Water Main Repair Program FAQs
- Baltimore City DPW: The Rules and Regulations for Water and Wastewater (PDF)
- Baltimore City Code, Art. 24 § 21-6
- Baltimore City DPW: Baltimore City and County Form Service Line Partnership
- HomeAdvisor: How Much Does Main Water Line Leak Repair Cost in 2025?
- HomeAdvisor: How Much Does Main Water Line Replacement Cost in 2026?
- Fixr: Main Water Line Installation Cost (updated 2025-08-29)
- Baltimore City DPW: Water and Sewer Adjustment Request
- Baltimore City DPW: Water and Sewer Adjustment Request Form
- Baltimore City DPW: Higher Than Normal Water Bill
- Baltimore City: Office of Water Advocacy & Customer Appeals
- Baltimore City Code, Article 24, §§ 2-19 and 2-20
- Baltimore City DPW: Baltimore County Water Billing System Upgrade and Customer Self-Service Portal
- Patch: Baltimore Introduces New Water Bill Portal (City release, 2016)
- EPA WaterSense: Fix a Leak Week
- Baltimore County Code § 20-1-113
Meter still spinning?
Call Speedy Plumbing Baltimore to find and fix the leak on your side of the meter. The line is answered 24 hours a day.
Call (716) 328-9097